{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,30]],"date-time":"2025-05-30T11:24:29Z","timestamp":1748604269490,"version":"3.37.3"},"reference-count":45,"publisher":"Public Library of Science (PLoS)","issue":"12","license":[{"start":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T00:00:00Z","timestamp":1669852800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JSPS KAKENHI Grant No. 20H04570"],"award-info":[{"award-number":["JSPS KAKENHI Grant No. 20H04570"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["Grant-in-Aid for JSPS Fellows (No. 21J00569)"],"award-info":[{"award-number":["Grant-in-Aid for JSPS Fellows (No. 21J00569)"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Studies focused on jumping performance in humans have so far investigated either its biological or sociocultural significance, with very little attentions paid to the inseparable relations of these two aspects in daily life of people. Integrating both ethnographic and biomechanical methods, this research investigated the biosocial features of the jump performance of Maasai youth in its most well observed context, the wedding ceremony. Ethnographic data were used to explain the social status of participants, the physical movements and singing tempo of performers, and their interactions. Biomechanical methods were applied to assess the heights and frequencies of identified repetitive double-legged vertical jumps (n = 160, from 15 male youths). All youth performers followed a certain posture pattern, paying specific attention to their final landing. Large variations exist in their jumping heights [coefficient of variation (CV) = 0.237]; however, the frequency in jump repetitions were maintained with the least variations (CV = 0.084). Cheering interactions were confirmed, but with no significant difference in height between the cheered and non-cheered groups. These results indicate that the Maasai youths did not compete for jump height during local ceremonies. Rather, they emphasized the rhythmical retention of jumps, corresponding to other youth mates who were singing alongside. In the broader context of human behaviors, the analysis addresses the diverse meanings of motor performances in different daily contexts that reject the generalized sports regime of \u201chigher\/faster-the-better\u201d.<\/jats:p>","DOI":"10.1371\/journal.pone.0278547","type":"journal-article","created":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T20:08:27Z","timestamp":1669925307000},"page":"e0278547","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":1,"title":["Jumping is not just about height: Biosocial becomings as an integrative approach in understanding contextualized jump performance in Maasai society"],"prefix":"10.1371","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5682-2279","authenticated-orcid":true,"given":"Xiaojie","family":"Tian","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8235-5750","authenticated-orcid":true,"given":"Yushi","family":"Yanohara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0147-9140","authenticated-orcid":true,"given":"Francis M.","family":"Mwangi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Natsuki","family":"Sado","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2022,12,1]]},"reference":[{"issue":"10","key":"pone.0278547.ref001","doi-asserted-by":"crossref","first-page":"1217","DOI":"10.1016\/S0021-9290(00)00061-0","article-title":"Studies of human locomotion: Past, present and future","volume":"33","author":"TP Andriacchi","year":"2000","journal-title":"J Biomech"},{"issue":"2","key":"pone.0278547.ref002","doi-asserted-by":"crossref","first-page":"S13","DOI":"10.1016\/j.kjms.2011.08.004","article-title":"Biomechanics of human movement and its clinical applications","volume":"28","author":"T-W Lu","year":"2012","journal-title":"Kaohsiung J Med Sci"},{"key":"pone.0278547.ref003","doi-asserted-by":"crossref","first-page":"109751","DOI":"10.1016\/j.jbiomech.2020.109751","article-title":"Free-leg side elevation of pelvis in single-leg jump is a substantial advantage over double-leg jump for jumping height generation","volume":"104","author":"N Sado","year":"2020","journal-title":"J Biomech"},{"key":"pone.0278547.ref004","doi-asserted-by":"crossref","first-page":"110082","DOI":"10.1016\/j.jbiomech.2020.110082","article-title":"Non-extension movements inducing over half the mechanical energy directly contributing to jumping height in human running single-leg jump","volume":"113","author":"N Sado","year":"2020","journal-title":"J Biomech"},{"volume-title":"Human body dynamics: classical mechanics and human movement","year":"2000","author":"A. 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